What is Memory tuning: -XX:InitialRAMPercentage?

Usage:

You can set the initial heap size as a percentage of total memory with:

-XX:InitialRAMPercentage=x, where x is the desired percentage of heap memory between 0 and 100 of type double.

Examples:

Will set the initial heap size to 15.2654 and 30%:

-XX:InitialRAMPercentage =15.2654

-XX:InitialRAMPercentage=30.00

Description:

This Oracle HotSpot option can be used to specify the initial size of the Java heap as a percentage of the total memory available to the JVM. If you set a value for -Xms, the -XX:InitialRAMPercentage option is ignored. If your application is running in a container and you have specified -XX:+UseContainerSupport, the default heap size for containers, the -XX:InitialRAMPercentage option is based on the available container memory.

Default Value:

Depends on the system

Errors:

Accepts only numeric double values from 0 to 100

Arguments related:

TODO link Xmx, Xms, UseContainerSupport, MaxRAMPercentage

 Related Posts:

• Understanding memory management
• Garbage collectors documentation
• Tuning JVM

NOTE:

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